chromeos: Allow for VB_SOURCE override

One may prefer to include vboot from another directory than 3rdparty for
convenience. This is especially the case in Libreboot, where 3rdparty is not
checked out at all.

Change-Id: I13167eb604a777a2ba87c3567f134ef3ff9610e4
Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-on: http://review.coreboot.org/11116
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

0 files changed, 0 insertions, 0 deletions